For the ICI-dominant regime, the scenario in Fig. REF  is considered, where four targets are located at the same range bin, but with different velocities. Since the maximum velocity is small, Target 3 and Target 4 lie in the same range-velocity bin as Target 1 and Target 2, respectively. Hence, standard OFDM [1]}, [2]} and OTFS [3]}, [4]}, [5]} radar algorithms cannot distinguish Target 1-3 and Target 2-4 as two separate echoes.
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